xref: /freebsd/contrib/bmake/configure.in (revision 9ecd54f24fe9fa373e07c9fd7c052deb2188f545) 
1dnl
2dnl RCSid:
3dnl	$Id: configure.in,v 1.51 2014/01/02 22:20:52 sjg Exp $
4dnl
5dnl Process this file with autoconf to produce a configure script
6dnl
7AC_PREREQ(2.50)
8AC_INIT([bmake], [20140101], [sjg@NetBSD.org])
9AC_CONFIG_HEADER(config.h)
10
11dnl make srcdir absolute
12case "$srcdir" in
13/*) ;;
14*) srcdir=`cd $srcdir && pwd`;;
15esac
16
17dnl
18AC_ARG_WITH(defshell,
19[  --with-defshell=SHELL  use SHELL by default - must be sh compatible, use sh or ksh to pick the internal definitions],
20[case "${withval}" in
21yes)   AC_MSG_ERROR(bad value ${withval} given for bmake DEFSHELL) ;;
22no)    ;;
23*)     case "$with_defshell" in
24       sh)  DEFSHELL_INDEX=DEFSHELL_INDEX_SH;;	# it's the default anyway
25       ksh) DEFSHELL_INDEX=DEFSHELL_INDEX_KSH;;
26       csh) DEFSHELL_INDEX=DEFSHELL_INDEX_CSH;;	# kidding right?
27       *)   defshell_path=$with_defshell;;	# better be sh compatible!
28       esac
29       ;;
30       esac])
31dnl
32use_meta=yes
33AC_ARG_WITH(meta,
34[ --without-meta dissable use of meta-mode],
35[case "${withval}" in
36yes|no) use_meta=${withval};;
37*) AC_MSG_ERROR(bad value ${withval} given for meta) ;;
38esac])
39dnl
40AC_ARG_WITH(filemon,
41[ --with-filemon=path/filemon.h indicate path to filemon.h for meta-mode],
42[ case "/${withval}" in
43/no|*/filemon.h) filemon_h="${withval}";;
44*/filemon*) filemon_h="${withval}/filemon.h";;
45*) AC_MSG_ERROR(bad value ${withval} given for filemon) ;;
46esac],
47[
48OS=`uname -s`
49for d in "/usr/include/dev/filemon" "$prefix/include/dev/filemon" "$srcdir/filemon" "$srcdir/../filemon" "$srcdir/../../sys/dev/filemon"
50do
51	for x in "/$OS" ""
52	do
53		filemon_h="$d$x/filemon.h"
54		test -s "$filemon_h" && break
55	done
56	test -s "$filemon_h" && break
57done
58test -s "${filemon_h:-/dev/null}" || filemon_h=no
59])
60dnl echo "Note: use_meta=$use_meta filemon_h=$filemon_h" >&6
61case "$use_meta" in
62yes)
63	case "$filemon_h" in
64	*.h) echo "Using: filemon=$filemon_h" >&6;;
65	esac
66	;;
67esac
68dnl
69dnl Check for OS problems
70dnl Solaris's signal.h only privides sigset_t etc if one of
71dnl _EXTENSIONS_ _POSIX_C_SOURCE or _XOPEN_SOURCE are defined.
72dnl The later two seem to cause more problems than they solve so if we
73dnl see _EXTENSIONS_ we use it.
74AC_USE_SYSTEM_EXTENSIONS
75dnl Checks for programs.
76AC_PROG_CC
77AC_PROG_GCC_TRADITIONAL
78AC_PROG_INSTALL
79dnl Executable suffix - normally empty; .exe on os2.
80AC_SUBST(ac_exe_suffix)dnl
81dnl
82dnl Hurd refuses to define PATH_MAX or MAXPATHLEN
83if test -x /usr/bin/getconf; then
84   bmake_path_max=`getconf PATH_MAX / 2> /dev/null`
85fi
86bmake_path_max=${bmake_path_max:-1024}
87if test $bmake_path_max -gt 1024; then
88   # this is all we expect
89   bmake_path_max=1024
90fi
91echo "Using: BMAKE_PATH_MAX=$bmake_path_max" >&6
92AC_SUBST(bmake_path_max)dnl
93dnl
94dnl AC_C_CROSS
95dnl
96
97dnl Checks for header files.
98AC_HEADER_STDC
99AC_HEADER_SYS_WAIT
100AC_HEADER_DIRENT
101dnl Keep this list sorted
102AC_CHECK_HEADERS( \
103	ar.h \
104	err.h \
105	fcntl.h \
106	paths.h \
107	poll.h \
108	ranlib.h \
109	string.h \
110	sys/mman.h \
111	sys/select.h \
112	sys/socket.h \
113	sys/sysctl.h \
114	sys/time.h \
115	sys/uio.h \
116	unistd.h \
117	utime.h \
118	)
119
120dnl Both *BSD and Linux have sys/cdefs.h, most do not.
121dnl If it is missing, we add -I${srcdir}/missing to CFLAGS
122dnl also if sys/cdefs.h does not have __RCSID we need to use ours
123dnl but we need to include the host's one too *sigh*
124AC_CHECK_HEADER(sys/cdefs.h,
125echo $ECHO_N "checking whether sys/cdefs.h is compatible... $ECHO_C" >&6
126AC_EGREP_CPP(yes,
127[#include <sys/cdefs.h>
128#ifdef __RCSID
129yes
130#endif
131],
132echo yes  >&6,
133echo no  >&6; CPPFLAGS="${CPPFLAGS} -I`cd ${srcdir}/missing && pwd` -DNEED_HOST_CDEFS_H"),
134CPPFLAGS="${CPPFLAGS} -I`cd ${srcdir}/missing && pwd`")
135
136dnl Checks for typedefs, structures, and compiler characteristics.
137AC_C___ATTRIBUTE__
138AC_C_BIGENDIAN
139AC_C_CONST
140AC_TYPE_OFF_T
141AC_TYPE_PID_T
142AC_TYPE_SIZE_T
143AC_DECL_SYS_SIGLIST
144AC_HEADER_TIME
145AC_STRUCT_TM
146
147dnl Checks for library functions.
148AC_TYPE_SIGNAL
149AC_FUNC_VFORK
150AC_FUNC_VPRINTF
151AC_FUNC_WAIT3
152dnl Keep this list sorted
153AC_CHECK_FUNCS( \
154	err \
155	errx \
156	getcwd \
157	getenv \
158	getopt \
159	getwd \
160	killpg \
161	mmap \
162	putenv \
163	select \
164	setenv \
165	setpgid \
166	setsid \
167	sigaction \
168	sigvec \
169	snprintf \
170	strerror \
171	strftime \
172	strsep \
173	strtod \
174	strtol \
175	sysctl \
176	unsetenv \
177	vsnprintf \
178	wait3 \
179	wait4 \
180	waitpid \
181	warn \
182	warnx \
183	)
184
185dnl functions which we may need to provide
186AC_REPLACE_FUNCS( \
187	realpath \
188	dirname \
189	stresep \
190	strlcpy \
191	)
192
193AC_CHECK_LIB([util], [emalloc],
194    [ AC_CHECK_LIB([util], [erealloc],
195      [ AC_CHECK_LIB([util], [estrdup],
196        [ AC_CHECK_LIB([util], [estrndup],
197	  [ LIBS="$LIBS -lutil"
198	    CPPFLAGS="$CPPFLAGS -DUSE_EMALLOC" ])])])])
199
200dnl
201dnl Structures
202dnl
203AC_HEADER_STAT
204AC_STRUCT_ST_RDEV
205dnl
206dnl we want this for unit-tests/Makefile
207echo $ECHO_N "checking if diff -u works... $ECHO_C" >&6
208if diff -u /dev/null /dev/null > /dev/null 2>&1; then
209   diff_u=-u
210   echo yes >&6
211else
212   diff_u=
213   echo no >&6
214fi
215dnl
216dnl AC_* don't quite cut it.
217dnl
218echo "checking for MACHINE & MACHINE_ARCH..." >&6
219cat > conftest.$ac_ext <<EOF
220#include "confdefs.h"
221#include <sys/param.h>
222#ifdef MACHINE
223machine=MACHINE
224#endif
225#ifdef MACHINE_ARCH
226machine_arch=MACHINE_ARCH
227#endif
228EOF
229
230default_machine=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 |
231	egrep machine= | tr -d ' "'`
232rm -rf conftest*
233if test "$default_machine"; then
234	eval "$default_machine"
235fi
236machine=${machine:-`$srcdir/machine.sh`}
237machine_arch=${machine_arch:-`$srcdir/machine.sh arch`}
238echo "defaults: MACHINE=$machine, MACHINE_ARCH=$machine_arch" 1>&6
239dnl
240dnl now allow overrides
241dnl
242AC_ARG_WITH(machine,
243[  --with-machine=MACHINE  explicitly set MACHINE],
244[case "${withval}" in
245yes)   AC_MSG_ERROR(bad value ${withval} given for bmake MACHINE) ;;
246no)    ;;
247generic) machine=`$srcdir/machine.sh`;;
248*)     machine=$with_machine;;
249esac])
250force_machine=
251AC_ARG_WITH(force_machine,
252[  --with-force-machine=MACHINE  set FORCE_MACHINE],
253[case "${withval}" in
254yes)   force_machine=FORCE_;;
255no)    ;;
256*)     force_machine=FORCE_; machine=$with_force_machine;;
257esac])
258dnl
259force_machine_arch=
260AC_ARG_WITH(force_machine_arch,
261[  --with-force-machine-arch=MACHINE  set FORCE_MACHINE_ARCH],
262[case "${withval}" in
263yes)   force_machine_arch=FORCE_;;
264no)    ;;
265*)     force_machine_arch=FORCE_; machine_arch=$with_force_machine;;
266esac])
267dnl
268AC_ARG_WITH(machine_arch,
269[  --with-machine_arch=MACHINE_ARCH  explicitly set MACHINE_ARCH],
270[case "${withval}" in
271yes)   AC_MSG_ERROR(bad value ${withval} given for bmake MACHINE_ARCH) ;;
272no)    ;;
273*)     machine_arch=$with_machine_arch;;
274esac])
275dnl
276dnl Tell them what we ended up with
277dnl
278echo "Using: ${force_machine}MACHINE=$machine, MACHINE_ARCH=$machine_arch" 1>&6
279dnl
280dnl Allow folk to control _PATH_DEFSYSPATH
281dnl
282default_sys_path=\${prefix}/share/mk
283AC_ARG_WITH(default-sys-path,
284[  --with-default-sys-path=PATH:DIR:LIST  use an explicit _PATH_DEFSYSPATH
285	MAKESYSPATH is a ':' separated list of directories
286	that bmake will search for system .mk files.
287	_PATH_DEFSYSPATH is its default value.],
288[case "${withval}" in
289yes)	AC_MSG_ERROR(bad value ${withval} given for bmake _PATH_DEFSYSPATH) ;;
290no)	;;
291*)	default_sys_path="$with_default_sys_path"
292	;;
293esac])
294dnl
295dnl Some folk don't like this one
296dnl
297AC_ARG_WITH(path-objdirprefix,
298[  --with-path-objdirprefix=PATH  override _PATH_OBJDIRPREFIX],
299[case "${withval}" in
300yes)   AC_MSG_ERROR(bad value ${withval} given for bmake _PATH_OBJDIRPREFIX) ;;
301no)    CPPFLAGS="$CPPFLAGS -DNO_PATH_OBJDIRPREFIX" ;;
302*)     CPPFLAGS="$CPPFLAGS \"-D_PATH_OBJDIRPREFIX=\\\"$with_path-objdir\\\"\"" ;;
303esac])
304dnl
305dnl And this can be handy to do with out.
306dnl
307AC_ARG_ENABLE(pwd-override,
308[  --disable-pwd-override  disable \$PWD overriding getcwd()],
309[case "${enableval}" in
310yes)   ;;
311no)    CPPFLAGS="$CPPFLAGS -DNO_PWD_OVERRIDE" ;;
312*)     AC_MSG_ERROR(bad value ${enableval} given for pwd-override option) ;;
313esac])
314dnl
315dnl Just for grins
316dnl
317AC_ARG_ENABLE(check-make-chdir,
318[  --disable-check-make-chdir disable make trying to guess
319	when it should automatically cd \${.CURDIR}],
320[case "${enableval}" in
321yes)   ;;
322no)    CPPFLAGS="$CPPFLAGS -DNO_CHECK_MAKE_CHDIR" ;;
323*)     AC_MSG_ERROR(bad value ${enableval} given for check-make-chdir option) ;;
324esac])
325dnl
326dnl On non-BSD systems, bootstrap won't work without mk
327dnl
328AC_ARG_WITH(mksrc,
329[  --with-mksrc=PATH tell makefile.boot where to find mk src],
330[case "${withval}" in
331""|yes|no) ;;
332*) test -s $withval/install-mk && mksrc=$withval ||
333AC_MSG_ERROR(bad value ${withval} given for mksrc cannot find install-mk)
334;;
335esac
336])
337dnl
338dnl Now make sure we have a value
339dnl
340srcdir=`cd $srcdir && pwd`
341for mksrc in $mksrc $srcdir/mk $srcdir/../mk mk
342do
343	test -s $mksrc/install-mk || continue
344	mksrc=`cd $mksrc && pwd`
345	break
346done
347mksrc=`echo $mksrc | sed "s,$srcdir,\\\${srcdir},"`
348echo "Using: MKSRC=$mksrc" 1>&6
349dnl On some systems we want a different default shell by default
350if test -x /usr/xpg4/bin/sh; then
351        defshell_path=${defshell_path:-/usr/xpg4/bin/sh}
352fi
353if test -n "$defshell_path"; then
354	echo "Using: SHELL=$defshell_path"  >&6
355	AC_DEFINE_UNQUOTED(DEFSHELL_CUSTOM, "$defshell_path", Path of default shell)
356fi
357if test -n "$DEFSHELL_INDEX"; then
358       AC_DEFINE_UNQUOTED(DEFSHELL_INDEX, $DEFSHELL_INDEX, Shell spec to use by default)
359fi
360dnl
361AC_SUBST(machine)
362AC_SUBST(force_machine)
363AC_SUBST(machine_arch)
364AC_SUBST(mksrc)
365AC_SUBST(default_sys_path)
366AC_SUBST(INSTALL)
367AC_SUBST(GCC)
368AC_SUBST(diff_u)
369AC_SUBST(use_meta)
370AC_SUBST(filemon_h)
371AC_OUTPUT(makefile Makefile.config make-bootstrap.sh unit-tests/Makefile)
372
373cat <<EOF
374
375You can now run
376
377	sh ./make-bootstrap.sh
378
379to produce a fully functional bmake.
380
381EOF
382